It’s the perfect crime for a police state society: Destroy peoples’ memories with the excuse of calling it “mental health treatment.”
These drugs could be used on political prisoners, of course. Got someone speaking out against the government? Just arrest them, diagnose them with some mental disorder such as Oppositional Defiance Disorder, then force-feed them drugs that erase their memories.
A few months later, release them back into the world as mind-numbed zombies, where they are sure to go along with the rest of the crowd that’s already lining up for vaccines, TSA pat-downs and mind-altering pharmaceuticals.